---
product_id: 531748792
title: "LS Coolant Crossover Steam Vent Kit AN4 Fuel Brake Line 4 Corner Complete Steam Port Kit for 6.0 5.3 LS1 LS2 LS3 LS6 LS7 LS9 LSX Silver"
brand: "pqy"
price: "2188018₫"
currency: VND
in_stock: true
reviews_count: 7
url: https://www.desertcart.vn/products/531748792-ls-coolant-crossover-steam-vent-kit-an4-fuel-brake-line
store_origin: VN
region: Vietnam
---

# Universal fit for LS1 to LSX engines, optimized steam venting Precision tapered thread fittings for leak-proof seal High-grade stainless steel AN4 fuel brake line LS Coolant Crossover Steam Vent Kit AN4 Fuel Brake Line 4 Corner Complete Steam Port Kit for 6.0 5.3 LS1 LS2 LS3 LS6 LS7 LS9 LSX Silver

**Brand:** pqy
**Price:** 2188018₫
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your LS engine’s cooling game—vent like a pro, drive like a legend!

## Quick Answers

- **What is this?** LS Coolant Crossover Steam Vent Kit AN4 Fuel Brake Line 4 Corner Complete Steam Port Kit for 6.0 5.3 LS1 LS2 LS3 LS6 LS7 LS9 LSX Silver by pqy
- **How much does it cost?** 2188018₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/531748792-ls-coolant-crossover-steam-vent-kit-an4-fuel-brake-line)

## Best For

- pqy enthusiasts

## Why This Product

- Trusted pqy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Leak-Proof Precision:** Tapered thread design guarantees a secure, no-drip seal—say goodbye to coolant loss and pressure drops.
- • **Universal Compatibility:** Seamlessly fits LS1, LS2, LS3, LS6, LS7, LS9, and LSX engines, making it the ultimate upgrade for your LS series ride.
- • **Complete Installation Kit:** Includes manifold ports, couplers, end fittings, and lag spikes—everything you need for a professional-grade setup.
- • **Engineered for Peak Performance:** Premium stainless steel and aluminum construction ensures durability and corrosion resistance under extreme conditions.
- • **Optimized Steam Pressure Release:** Efficiently vents steam and pressure from the cooling system, protecting your engine and enhancing longevity.

## Overview

The PQY LS Coolant Crossover Steam Vent Kit is a robust, stainless steel and aluminum assembly designed to efficiently release steam pressure from LS series engines (LS1 through LSX). Featuring tapered thread fittings for a leak-proof seal and a comprehensive kit including manifold ports and couplers, it ensures enhanced cooling system performance and durability. Ideal for professional upgrades and maintenance, this kit prevents overheating and maintains optimal engine pressure.

## Description

Full description not available

## Features

- LS Stainless Steam Vent Kit: The AN4 fuel brake line pipe is made of high quality stainless steel,the ls steam vent fittings are made of high quality aluminum.The fitting is designed with Tapered thread and not easy to leak,you can also use some tap onto the thread of the fitting.
- APPLICATION: The LS 4 port steam vent kit is universal for LS1, LS2, LS3, LS6, LS7, LS9, LSX engines.Please check the size of the LS steam vent line kit before purchase.
- PERFORMANCE: The PQY LS coolant crossover steam vent kit can allow the radiator cap to release pressure as intended thereby removing the steam/pressure from the system.Our PQY ls steam port kit is a great replacement for 5.3 ls steam vent kit and 6.0 ls steam port kit.
- PACKAGE INCLUDES: 5x Center manifold,1x Corner manifold ports machines,4x Coupler,9x End fittings,4x Lag spike.
- INSTALLATION TIP: Please install the ls coolant crossover kit when the engine is not hot as it can become a safety hazard to handle hot fluids.Does not have clearance under the intake to run a proper traditional hard line steam kit coolant crossover setup.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | PQY |
| Item Weight | 1.15 pounds |
| Package Dimensions | 8.98 x 4.65 x 1.54 inches |
| Color | Silver |
| Material | Stainless Steel |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** PQY
- **Material:** Stainless Steel
- **Color:** Silver
- **Item Weight:** 0.52 Kilograms
- **Manufacturer:** PQY

## Images

![LS Coolant Crossover Steam Vent Kit AN4 Fuel Brake Line 4 Corner Complete Steam Port Kit for 6.0 5.3 LS1 LS2 LS3 LS6 LS7 LS9 LSX Silver - Image 1](https://m.media-amazon.com/images/I/41vL8lEc87L.jpg)

## Customer Reviews

### ⭐ Leaks…..
*by D***. on July 6, 2025*

Followed instructions to the T. Didn’t get the steamport gaskets. Had to buy some then, when I got it all together and added coolant it was leaking from three different points.Messed with it for quite a bit trying to make sure that everything lined up perfectly and done according to the instructions.Still leaked.It’s outside of the return window, so in the trash it’s going. Just ordered an AN fitting kit, like I should have done to begin with.

### ⭐⭐⭐⭐⭐ looks good on the motor
*by R***R on January 18, 2025*

looks good on the motor

### ⭐⭐⭐⭐ Fair for the price point.
*by C***G on May 14, 2025*

Overall kit works well. Wouldn’t say a simple bolt on, some tweaking was required to get everything to line up, 3 different style lines, no instructions included. Wouldn’t say be nice to have some seals as the old ones were cooked coming apart. Also doesn’t have a grove machined like the oem ports/plugs for the seal to sit in. Hopefully this doesn’t prove to be an issue later.

## Frequently Bought Together

- PQY LS Coolant Crossover Steam Vent Kit LS 4 Port Steam Line Kit Compatible with LS1 LS2 LS3 LS6 Engines
- WnSEu MSCRP LS Gen 3 Low Profile Valley Pan Cover Plate with Gasket and Seals Compatible with LSX LS1 LM7 LR4 LQ4 LS6 L59
- koxuyim Camshaft Retainer Plate Gasket Compatible with LS Series Engines, &Bolt Kit ARP 134-1003 Gen III IV V for GM LS1 LS2 LS3 4.8 5.3L 6.0L 6.2L Vortec Corvette Cam

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-17*